Tools & Wizards About Us
china-dongya.com screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    81% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

china-dongya.com

china mechanical seals|pump mechanical seals|mechanical seals for pumps|宁波东联密封件有限公司

Page Load Speed

6.8 sec in total

First Response

407 ms

Resources Loaded

5.9 sec

Page Rendered

466 ms

china-dongya.com screenshot

About Website

Visit china-dongya.com now to see the best up-to-date China Dongya content and also check out these interesting facts you probably never knew about china-dongya.com

Dyseals is a mechanical seal manufacturer for water centrifugal pumps,making seal faces/rings in sic/silicon carbide,ceramic,tungsten carbide and carbon etc for pump mechanical seals,classified into o...

Visit china-dongya.com

Key Findings

We analyzed China-dongya.com page load time and found that the first response time was 407 ms and then it took 6.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

china-dongya.com performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

53/100

25%

SI (Speed Index)

Value4.6 s

70/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.255

48/100

15%

TTI (Time to Interactive)

Value4.0 s

88/100

10%

Network Requests Diagram

china-dongya.com

407 ms

www.china-dongya.com

356 ms

www.china-dongya.com

361 ms

app.min.css

276 ms

swiper.min.css

212 ms

Our browser made a total of 83 requests to load all elements on the main page. We found that 94% of them (78 requests) were addressed to the original China-dongya.com, 1% (1 request) were made to S7.addthis.com and 1% (1 request) were made to S4.cnzz.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain China-dongya.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 77.4 kB (4%)

Content Size

1.9 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of China-dongya.com main page is 1.9 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 45% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 55.8 kB

  • Original 63.0 kB
  • After minification 41.8 kB
  • After compression 7.2 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 21.2 kB, which is 34% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 55.8 kB or 89% of the original size.

Image Optimization

-1%

Potential reduce by 14.8 kB

  • Original 1.7 MB
  • After minification 1.7 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. China Dongya images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 4.0 kB

  • Original 82.5 kB
  • After minification 82.5 kB
  • After compression 78.5 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-7%

Potential reduce by 2.8 kB

  • Original 39.2 kB
  • After minification 39.2 kB
  • After compression 36.4 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. China-dongya.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 21 (28%)

Requests Now

76

After Optimization

55

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of China Dongya. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

china-dongya.com

china-dongya.com

407 ms

www.china-dongya.com

www.china-dongya.com

356 ms

www.china-dongya.com

www.china-dongya.com

361 ms

app.min.css

app.min.css

276 ms

swiper.min.css

swiper.min.css

212 ms

font-awesome.min.css

font-awesome.min.css

217 ms

style.css

style.css

216 ms

jquery-1.12.4.min.js

jquery-1.12.4.min.js

308 ms

swiper.min.js

swiper.min.js

321 ms

bootstrap.offcanvas.min.js

bootstrap.offcanvas.min.js

419 ms

responsive-paginate.js

responsive-paginate.js

428 ms

feedback.js

feedback.js

429 ms

menu_1.css

menu_1.css

503 ms

menu_action_hover.js

menu_action_hover.js

519 ms

menu_1.js

menu_1.js

531 ms

index.css

index.css

633 ms

index.js

index.js

636 ms

company_profile_special.css

company_profile_special.css

641 ms

products_group_jigsaw.css

products_group_jigsaw.css

716 ms

products_group_jigsaw.js

products_group_jigsaw.js

727 ms

spe_text.css

spe_text.css

736 ms

footer.css

footer.css

841 ms

footer.js

footer.js

849 ms

addthis_widget.js

addthis_widget.js

147 ms

overWrite-1.css

overWrite-1.css

850 ms

cn.jpg

cn.jpg

486 ms

en.jpg

en.jpg

497 ms

es.jpg

es.jpg

528 ms

pt.jpg

pt.jpg

626 ms

de.jpg

de.jpg

634 ms

fr.jpg

fr.jpg

644 ms

ru.jpg

ru.jpg

710 ms

it.jpg

it.jpg

707 ms

dk.jpg

dk.jpg

743 ms

tr.jpg

tr.jpg

837 ms

pl.jpg

pl.jpg

836 ms

se.jpg

se.jpg

855 ms

jp.jpg

jp.jpg

909 ms

vn.jpg

vn.jpg

921 ms

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1027 ms

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1323 ms

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1337 ms

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1378 ms

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1418 ms

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1422 ms

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1324 ms

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1608 ms

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1625 ms

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1626 ms

opensans-regular-webfont.woff

opensans-regular-webfont.woff

1584 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1739 ms

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1632 ms

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1695 ms

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1710 ms

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1720 ms

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1643 ms

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1698 ms

z_stat.php

z_stat.php

1688 ms

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0823155624_403649444.jpg

1803 ms

icomoon.woff

icomoon.woff

1768 ms

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1773 ms

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1808 ms

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1732 ms

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1800 ms

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1852 ms

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1772 ms

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1773 ms

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1787 ms

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1869 ms

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1959 ms

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1923 ms

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1907 ms

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1870 ms

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2034 ms

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2005 ms

qrcode.jpg

qrcode.jpg

1970 ms

fixed-email.png

fixed-email.png

1871 ms

fixed-share.png

fixed-share.png

1598 ms

code.php

code.php

1643 ms

bf.png

bf.png

1768 ms

stat.htm

stat.htm

1305 ms

c.js

c.js

969 ms

pic1.gif

pic1.gif

1364 ms

Accessibility Review

china-dongya.com accessibility score

66

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

china-dongya.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

china-dongya.com SEO score

91

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise China-dongya.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that China-dongya.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

china-dongya.com

Open Graph description is not detected on the main page of China Dongya. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: